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Finding the Fourth Proportional to 647,050.86, 892,675.62 and 432,331.20

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Solution

The fourth proportional to 647,050.86, 892,675.62 and 432,331.20 is: 596,446.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,050.86 : 892,675.62 = 432,331.20 : x
  2. Step 2: Convert to fraction form
    647,050.86/892,675.62 = 432,331.20/x
  3. Step 3: Cross multiply
    647,050.86x = 892,675.62 × 432,331.20
  4. Step 4: Simplify right side
    647,050.86x = 385,931,522,005.34
  5. Step 5: Solve for x
    x = 385,931,522,005.34/647,050.86
  6. Step 6: Final answer
    x = 596,446.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.